I don't mind them if they are developed! I recently saw one that was literally just a cat with a bottle for a tail. So yeah... I think ones like that are kind of annoying and not even a species. :/

To be honest, I'm not a huge fan of them myself but I don't mind seeing them around. I just wouldn't buy one unless I find one that I really liked. (Which so far, has only been two: Pottery dogs and Cuillecks.) I'm also really picky about my characters lol.

I think I would like some of the others a bit more if they have developed historys, backstories, and reasons why they look the way they do, etc.